Abstract
Objectives The renin-angiotensin system (RAS) is thought to play a major role in the pathophysiology of de-novo restenotic lesions and in-stent restenosis after percutaneous coronary intervention (PCI). Heme oxygenase-1 (HO-1), is thought to beneficially influence these processes. We examined the effect of pharmacologic as well as genetic RAS interactions on restenosis in a large population of consecutive patients undergoing PCI, and evaluated possible gene-gene interactions in both systems.
Methods The GENDER project is a multicenter prospective follow-up study, including 3146 patients after successful PCI. Genotyping in these patients was performed for the ACE gene insertion/deletion, the angiotensinogen 235Met/Thr, T174M and A(-6)G, the angiotensin-II type 1 receptor (AT1R) 1166A/C and T81OA, the angiotensin-II type 2 receptor (AT2R) 1675G/A and 3123A polymorphisms and the length polymorphism in the HO-1 promoter region.
Results A total of 3104 patients were followed for 10 months. In 2975 patients at least one of the nine genotypes could be determined. The AT1R 1166 CC genotype showed a significant association with TVR; the other polymorphisms did not. RAS-inhibitory drugs were not associated with the incidence of TVR, nor did they interact with any of the investigated polymorphisms. Patients with the ACE I/I polymorphism showed a trend towards a better outcome if they had a short number of repeats in the HO-1 promoter. This relationship was inversely present in carriers of the ACE D/D polymorphism.
Conclusion We could only establish a role for the AT1R 1166A/C polymorphism in restenosis after PCI. However, significant gene-gene interaction was suggested for the ACE gene and the HO-1 promotor. The RAS and HO-1 relation in restenosis merits further investigation. Pharmacogenetics and Genomics 16:331-337 (c) 2006 Lippincott Williams & Wilkins.
Original language | English |
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Pages (from-to) | 331-337 |
Number of pages | 7 |
Journal | PHARMACOGENETICS AND GENOMICS |
Volume | 16 |
Issue number | 5 |
Publication status | Published - May-2006 |
Keywords
- angiotensins
- renin-angiotensin system
- hemeoxygenase 1
- single nucleotide polymorphism
- coronary restenosis
- angioplasty
- PLACEBO-CONTROLLED TRIAL
- MICROSATELLITE POLYMORPHISM
- ARTERY DISEASE
- BLOOD-PRESSURE
- GENE PROMOTER
- BALLOON ANGIOPLASTY
- RISK-FACTORS
- DOUBLE-BLIND
- IN-VIVO
- SYSTEM